Create a "hard plastic" material node-setup in Blender and a bump mapping?
Here's another node setup you could try...



It produces a waxy sort of plastic.

Here's what it looks like with some "bump" added:



But what's the point of giving you example node setups? If you don't really understand how Cycles' nodes work you won't be able to put together a recipe that conveys the look you want.

The real answer is: study Cycles a bit more to understand what the nodes do. Then you'll be able to create the material you are envisioning in your mind.

Once you feel comfortable using all of the common Cycles nodes, I suggest you do some research on PBR with Cycles. It will help you to get even more realistic results. But don't try to jump ahead, because if you don't first understand how Cycles works you will just get even more confused. I am mentioning this as a suggestion for the long term.